Incubator.



P. KAISER.

INCUBATOR.

APPLICATION FILED OCT-14,1915.

Patented July 11, 1916 2 SHEETS-SHEET 1 MEAN.

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PETER KAISER, OF CROWN POINT, INDIANA, ASSIGNOR 0F SIXTY-FIVE ONE- HUNDREDTHS TO CLAYTON D. ROOT, OF CROWN POINT, INDIANA.

INCUBATOR.

LIWLMLQ.

Specification of Letters Patent.

Patented July II, I9I'6.

To all whom it may concern:

Be it known that I, PETER KAIsER, a citizen of the United States, and a resident of Crown Point, in the county of Lake and State of Indiana, have invented certain new and useful Improvements in Incubators, of which the following is a full, clear, and ex act specification.

My invention is concerned with incubators, and is designed to produce a device of the class described in which the thermostat connections and devices by which the temperature of the heating fluid is kept uniform shall be of the simplest possible nature, and hence very durable and not liable to get out of order.

To illustrate my invention, I have annexed hereto two sheets of drawings,in which the same reference characters are used to designate identical parts in all the figures, of which,

Figure 1 is a top plan view of the incubator with the cover removed; Fig. 2 is an end elevation of the same; Fig. 3 is a view in section on the line 33 of Fig. 1, but on a slightly enlarged scale; Fig. 4 is a vertical section on a still larger scale, on the line 44 of Fig. 3; and Fig. 5 is a plan view in sec tion on the line 55 of Fig. 4.

In carrying out my invention in its preferred form, I employthe customary hollow casing 10, in which is mounted the egg tray 11, and which is provided with a preferably removable cover or top 12. The casing may be of any desired construction, and is preferably supported by the adjustable and removable legs 13.

In the upper portion of the casing, where my invention is to be employed in connection with an incubatorof the hot-watercirculating type, I place the pair of rectangular pipes 14 and 15, each of said pipes being connected at one end with the horizontal supply-tube 16, and at the other end to the horizontal discharge-tube 17 located above the same. These tubes 16 V and 17 pass through suitable apertures in the adjacent wall of the casing, and are connected to the boiler 18, which has the plurality of vertical tubes 19 extending therethrough, so that the heat from the lamp can pass upward through said tubes and heat the water in the boiler 18. I preferably provide the boiler with a passage 20 to one side thereof,

through which the waste heat can pass when the thermostat operates to deflect some of the heat arising from the lamp 21. This lamp 21 may be of any customary construction, audit is preferably provided with the spring clips 22 by which the lamp may be quickly and conveniently secured upon the flange 23 formed on the short sleeve or collar 24, which is supported from the bracket 25 secured to the adjacent side of the casing.

The short sleeve 24 terminates at about the polnt where the flame from the lamp rlses, and on the outer surface of this sleeve I pivot the flue 25, which is preferably composed of metal, and which may be of the general shape of the customary lamp chimney. This flue 25 is preferably rounded in cross section at its lower end, while its upper end is shaped so that it is substantlally square in cross section, and said upper end enters the rectangular bottom opening of the boiler extension 26, which will be seen to consist of a metal shell having its flaring upper end adapted'to be closed by the boiler and the associated passage 20 for the waste heat. The sides of this boiler extension 26 converge toward the bottom, as clearly seen in Figs. 2 and 3, and I preferably provide the partition 27 therein, as shown in Figs. 4 and 5. The upper end of the flue 25 preferably flares a trifle, as seen at 28 in Fig. 4, and is preferably also provided with an extension 29 which operates as a stop against the partition 27 when the flue is in its vertical position and all the heat is passing up through the boiler 18. To counterbalance the flue and hold it normally in its vertical position, and to enable it to beswung steadily, I preferably provide the counterbalance weight 30, which is preferably secured on the outer end of the armor lever 31, the inner end'of which is fastened to the flue, as clearly shown in Fig. 4.

Within the casing 10, I securethe bracket 32, and upon thisbracket I support, by a pivot or otherwise, the thermostat disk or element 33, the upper or free portion of which engages the lever 34, preferably by being pivoted thereto. This lever 34 is of the second class, and is fulcrumed to a bearing 35, preferably formed in the bracket 32. The load end of the lever 34 extends out through a narrow slot 36 in the casing, and isconnected by the link 37 with the arm or lever 31.

With the connections noted, a will be seen that as the temperature rises, the thermostat element tends to swing the outer end of the lever 34 upward, and this, acting v through the link 37 and the arm 31, tilts or "the action of the counterbalance weight 30.

.To convenientl and accuratel re ulate i the temperature at which the thermostat shall act, from the exterior, I thread the upper end of the. link 37 and pass it through an aperture in the outer end of the lever 34, and provide the set nut 38 by which the effective length of the link 37 can be ad justed. It further adjustment of the length of the link 37 is deemed'necessary, I may thread the lower end and secure it to the arm 31 the set nuts 39.

While I'have shown and described my inventionwas embodied in the form of incubator which I consider best adapted for its purposes, it will be understood that it can be applied to other forms and that it is capable ofsome modifications. i

That I claim as new, and desire to secure by Letters Patent of the'UnitedStates, is:

1. In a device of the class described, the combination with a casing having heat-distributing. appliances therein and a thermostat element fixedly supported therein, of a lamp supported outside of the casing, a chimney on said lamp consisting of a fixed collar portion closely surrounding the lamp burner, and a mainportion pivoted near the top of the collar portion and overlapping and making" a comparatively tight joint therewith in all positions, a heat-applying member above the chimney having heatutilizing passages extending therethrough, and link and lever connections from the thermostat element to the swinging portion of the chimney so that the expansion of the thermostat under undue heat'will swing the chimney so as to deflect some of the heat from the heat-utilizing passages.

2. In a device of the class described, the combination with a casing having heatdistributing appliances therein and a thermostat element fixedly supported therein, of a lamp supported outside of the casing, a chimney on said lamp consisting of a fixed collarportion closely surrounding the lamp burner, and a main portion pivoted near the top of the collar portion and overlapping and *making a comparatively tight joint therewith in all positions, a heat-applying member above the chimney having heatutilizing passages extending therethrough, a bracket support for the thermostat element within. the casing, a single lever fulcrumed on the bracket and connected to the free side of the thermostat element and having its load arm extending outside of the casing, and a link extending from the load arm and connected to the swinging portion of the chimney at a distance from its fulcrum.

3. I11 a device of the class described, the combination with a casing having heatdistributing appliances therein and a thermostat element fixedly supported therein, of a lamp supported outside of the casing, a chimney on said lamp consisting of a fixed collar portion closely surrounding the lamp burner, and a main portion pivoted near the top of the collar portion and overlapping and making a comparatively tight joint therewith in all positions, a heat-applying member above the chimney having heatutilizing passages extending therethrough, a bracket support for the thermostat element within the casing, a single lever fulcrumed on the bracket and connected to the free side of the thermostat element and having its load arm extending outside of the easing, a link extending from the load arm and connected to the swinging portion of the chimney at a distance from its fulcrum, and a counterbalance weight on the swinging portion of the chimney tending to hold it in its heating position.

4. In a device of the class described, the combination with a casing having heat-distributing appliances therein and a thermostat element fixedly supported therein, of a lamp supported outside of the casing, a chimneyon said lamp consisting of a fixed collar portion closely surrounding the lamp burner, and a main portion pivoted near the top of the collar portion and oxerlapping and making a comparatively tight joint therewith in all positions, a heat-applying member above the chimney having heatutilizing passages extending therethrough, a single lever fulcrumed within the casing and connected to the free side of the thermostat element and having its load arm extending outside of the casing, an arm fixed to the swinging portion of the chimney, a counterbalance weight on the outer end of the arm, and a link connecting the lever and arm.

5. In a device of the class described, the combination with a casing having heat-distributing appliances therein and a thermostat element fixedly supported therein, of a lamp supported outside of the casing, a chimney on said lamp consisting of a fixed collar portion closely surrounding the lamp burner, and a main portion pivoted near the top of the collar portion and overlapping and making a comparatively tight joint therewith in all positions, a heat-applying member above the chimney having heatutilizing passages extending therethrough, a single lever fulcrumed within the casing and connected to the free side of the thermostat element and having its load arm extending outside of the casing, an arm fixed to the swinging portion of the chimney, a counterbalance weight on the outer end of the arm, a link connecting the lever and arm, and means for adjusting the effective length of the link, consisting of a nut threaded on the upper end thereof and engaging the lever through which it passes.

6. In a device of the class described, the combination with a casing having heat-distributing appliances therein, of a lamp supported outside of the casing, a chimney on said lamp consisting of a fixed collar portion closely surrounding the lamp burner, and a main portion pivoted near the top of the collar portion and overlapping and making a comparatively tight joint therewith in all positions, a heat-applying member above the chimney connected with the heatdistributing appliances and having heatutilizing passages extending therethrough, a bracket support within the casing, a thermostat element supported thereon, a single lever fulcrumed to the bracket and connected to the free side of the thermostat element and having its load arm extending outside of the casing, an arm fixed to the swinging portion of the chimney,'a counterbalance weight on the outer end of the arm, and a link connecting the lever and arm, substantially as and for the purpose described.

In witness whereof, I have hereunto set my hand and affixed my seal, this 8th day of October, A. D. 1915.

PETER KAISER. [1,. s.]

Witnesses:

C. D. RooT, MARTINJ. SMITH.

Uopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

